A verruca, or wart, is a virus that lies between the layers of your skin. At best they are inconvenient but they can become very painful and will often spread as they are highly contagious. They normally appear on the feet or around the toe area and appear as little black spots under hard skin. They are often painful like standing on a needle. There are a variety of verruca treatments as discussed below.
While some verrucas are painless and may go away on their own they can often become very painful and take months or years to go if they do at all.